TW201422472A - Method and module for estimating driving range of electric vehicle that will be charged and driving assistant device - Google Patents

Abstract

A method and module for estimating driving range of an electric vehicle that will be charged and a driving assistant device are provided. The method includes power supplement location choosing step, a plan charging time determining step, a total power estimating step and a driving range estimating step for estimating the electric vehicle after the electric vehicle is charged. The plan charging time determining step calculates an estimating driving time for arriving each of the power supplement locations, an estimating waiting time for each of the power supplement locations and decides a plan charging time for each of the power supplement locations. The total power estimating step calculates an estimating power increment and an estimating total power according to each of the plan charging time. The driving range estimating step calculates an estimating driving range with the power supplement locations as a center according to a current driving information and the estimating total power.

Description

Driving range estimation method, module and driving assistance after charging of electric vehicle Auxiliary device

The invention relates to a method, a module and a driving assistance device capable of displaying a plurality of charging selective and charged estimated driving ranges to a user.

Under the global issues of green energy and environmental protection, the low-emission or even zero-emission electric vehicle industry will be the focus of future transportation equipment development. The battery is necessary for the electric vehicle, so the distribution of the charging device and the length of the charging time will affect the convenience of charging.

For the fast charging of electric vehicles, it takes 30-40 minutes to charge up to 7 times of battery capacity. Therefore, the acquisition of power equipment and the time taken for charging will greatly affect the journey planning of the vehicle users and even further Influencing the willingness to purchase electric vehicles.

Since the current charging station is in a relatively small or even uneven distribution, it is risky to wait until the power drops to a certain level to find a charging station. That is to say, the most common problem encountered by car users is that they need to be charged and suffer from no charging stations around them; otherwise, it is to change the driving route with the priority of charging, which detracts from the interest of tourism.

After considering the impact of the above-mentioned charging demand, the inventor of the present case proposed a patent application for "driving assistance method and driving assistance system for electric vehicles" (application number 100103461, publication number 201232488), and the filing date of the case was 2011/1/28, the publication date is 2012/8/1 (hereinafter referred to as application No. 461).

In the application No. 461, when the electric vehicle is started, the safe driving range is displayed. The safe driving range is defined as the range in which the electric vehicle can travel freely without causing irreparable power. Can solve the above problem.

The inventor of the case continued to delve into the space that could be improved on the basis of the application No. 461. The inventor of the present invention found that although the application No. 461 can dynamically display the safe driving range and the battery warning driving range, it does not estimate the situation after charging. Finding a power replenishment space, queuing, and actual charging time can have a considerable impact on the schedule of the trip.

Therefore, an object of the present invention is to provide a method and a module for estimating a driving range after charging of an electric vehicle, and a driving assistance device for the electric vehicle, which can select a power supply location and follow a specified time (specifying the time at which charging is completed). Estimate the time that can be recharged after the arrival of each power replenishment space (plan charging time), and estimate the driving range after charging (estimated driving range after charging) centered on each power replenishment location; or press one The specified time (specified charging time), the estimated driving range after reaching each power replenishment location and charging (the estimated driving range after charging). Based on this estimated range of travel (estimated range of charge after charging), the user can arrange the trip in advance to avoid unnecessary waiting time and make the journey more flexible and selective.

According to the above and other objects, the present invention provides an electric vehicle charging The following driving range estimation method includes: a step of selecting a power replenishment location, a decision step of planning a charging time, a total power estimation step after charging, and a step of estimating a driving range after charging. The power replenishment location selection step captures information from at least one power replenishment location. The determining step of the charging time is to calculate the estimated driving time of each of the at least one power replenishing space based on the current driving information and the information of the power replenishing location at the current moment, and calculate the arrival of each of the at least one power replenishing premises. An estimated charging waiting time, and determining a charging time of the electric vehicle for each of the at least one power replenishing space according to a specified time. The specified time is the specified charging time or the specified charging time. When the specified time is the specified charging time, the charging time of each plan is equal to the specified charging time. When the specified time is the specified charging time, the charging is calculated. The time is equal to the time at which the charging is completed minus the current time, the estimated travel time, and the estimated charging waiting time. The charging total power estimating step is to calculate the total electric quantity when the electric vehicle arrives at each of the at least one electric replenishing space and start charging, as the estimated total electric quantity at the start of charging, and calculate the electric vehicle according to each charging time. An estimated increase in power for each of the power replenishing spaces, adding the total amount of electricity at each estimated charging start to each estimated increase in power, as an estimated charge of the electric vehicle in each of the at least one power replenishing space Total electricity. The charging range estimation step is to calculate the estimated charging range of the electric vehicle centered on each of the at least one power replenishing space based on the current driving information and the total estimated charging power.

The method for estimating the driving range after charging of the electric vehicle may further include: changing the designated time, and repeating the charging according to the designated time after the change. The step of determining the time, the step of estimating the total amount of electricity after charging, and the step of estimating the range of driving after charging; and displaying the estimated driving range after the specified time and the designated time after the change on the display interface.

The method for estimating the driving range after charging of the electric vehicle may further include: displaying each estimated driving time, each estimated charging waiting time, and the charging time of the plan on the display interface.

The invention also provides a driving range estimating module for charging an electric vehicle, comprising: a determining unit for calculating a charging time, a total electric quantity estimating unit after charging, and a driving range estimating unit after charging. The determining unit of the charging time receives at least one information of the power replenishing location, the current time, the current driving information, and a specified time, and calculates, according to the information of the at least one power replenishing location and the current driving information, that the electric vehicle arrives at the at least one electric power The estimated travel time of each of the supplemental premises, and the estimated charge waiting time for each of the at least one power replenishment space are determined, and a plan charging time for each of the at least one power replenishment space is determined. After charging, the total power estimating unit receives each charging time of the plan, and calculates an estimated increase amount of the electric vehicle in each of the at least one power replenishing space according to each charging time, and calculates that the electric vehicle arrives at the at least one power supplement. At the beginning of the charging period, the estimated total amount of electricity at the start of charging is added, and the total amount of electricity at each estimated charging start is added to each estimated increase in electric power to obtain an estimate of each of the at least one electric power replenishing space of the electric vehicle. Total charge after charging. After the charging, the driving range estimating unit receives the total estimated electric quantity after each charging, and calculates an estimated charging range that the electric vehicle is centered on each of the at least one electric replenishing space.

In the above-mentioned charging range estimation module of the electric vehicle, the charging time of each of the plans is determined according to the designated time of the user, and the designated time is a time when the specified charging time is long or the charging is designated to be completed. When the specified time is the specified charging time, the charging time of each plan is equal to the specified charging time. When the specified time is the specified charging time, the charging time of each plan is equal to the time when the specified charging is completed minus the current time, and the estimated time. Driving time, estimated charging waiting time.

The invention also provides a driving assistance device for an electric vehicle, comprising: a vehicle dynamic analysis unit, an environmental change detection unit, a power supply device selection unit, and the above-mentioned charged driving range estimation module of the electric vehicle. The vehicle dynamic analysis unit senses the state of the electric vehicle itself to obtain vehicle dynamic information and battery information of the electric vehicle. The environmental change detection unit senses the state of the environment in which the electric vehicle is located to obtain positioning information, map information, and traffic information. The power supply device selection unit receives the vehicle dynamic information, the battery information, the positioning information, the map information, and the traffic information to set a selection range, and extracts information of at least one power supplement location within the selected range.

The vehicle dynamic information of the above electric vehicle includes information such as the vehicle speed, triaxial acceleration, triaxial angular velocity and electromagnetic direction of the electric vehicle, and is used to calculate the traveling direction and energy consumption of the electric vehicle.

The driving assistance device of the electric vehicle may further include a display interface. The display interface combines the map information, the information of the power replenishment location, and the estimated driving range after the charging of the driving range estimation unit. It also includes an operating human-machine interface that provides the user with input of various parameters of the method, such as a specified time; or provides the user after the designated power replenishment premises, Continue to query different ranges of different program charging times. The human interface can be included in the display interface or separate from the display interface, but connected to the display interface.

The above described features and advantages of the present invention will be more apparent from the following description. The present specification provides various embodiments to illustrate the technical features of various embodiments of the present invention. The arrangement of the various elements in the embodiments is for illustrative purposes and is not intended to limit the invention.

Please refer to FIG. 1 of the present invention, which illustrates a flow chart of a method for estimating a driving range after charging of an electric vehicle according to an embodiment of the present invention.

The method for estimating the driving range after charging of the electric vehicle of the present invention includes: a power replenishing location selection step S100, a planning charging time determining step S200, a post-charging total electric energy estimating step S300, and a post-charging driving range estimating step S400. .

The power replenishment location selection step S100 retrieves information of at least one power replenishment location Ch, where the power replenishment location Ch is, for example, a charging station. As shown in FIG. 2, step S100 includes setting a selection range SR (step S110), and finding a power supplement location Ch within the selection range SR (step S120). The selection range SR can be specified by the user, for example, SRu (Fig. 5A); it can also be determined according to the location of the electric vehicle C, the direction of travel, and the vehicle dynamic information (if the journey is directional), such as SRd ( As shown 5B); or it can be determined according to the location of the electric vehicle C and the speed information (if the journey is non-directional and random), such as SRr (Fig. 5C).

The power replenishment location Ch in the selection range SR may be one such as Ch1 or more than one such as Ch1, Ch2, ..., so it is referred to as at least one power replenishment location Ch. The step S100 of selecting the above-mentioned power replenishment location has been described in detail in the prior invention application of the inventor of the present invention, that is, the 461 application, and the detailed description thereof is omitted here.

The determining step S200 of the charging time is based on the current driving information of the current time Tn and the information of the power replenishing location Ch, and performs the following steps, as shown in FIG. 3, including the step S210 of calculating the estimated driving time, and calculating the pre-processing Step S220 of estimating the charging waiting time and step S230 of determining the charging time of the plan.

Step S210 is current driving information according to the current time Tn, for example, including vehicle dynamic information (this vehicle dynamic information is used to calculate the traveling direction and energy consumption of the electric vehicle, for example, including the speed of the electric vehicle, the triaxial acceleration, and the triaxial angular velocity. Information such as information on electromagnetic directions, battery information, positioning information, map information, traffic information, etc., and information on the above-mentioned power replenishment premises Ch, such as location, operating time, number of charging stations, average waiting time (queue time + The estimated travel time td of each of the above-mentioned power replenishment premises Ch is calculated by information such as the procedure time and the time of the reservation. In addition, the above current driving information may further include vehicle weight information.

If there is only one supplementary power location Ch1 in the above selection range SR If you calculate an estimated travel time td1, if there are two or more power replenishment locations Ch (Ch1, Ch2, etc.), calculate the arrival of each power replenishment location Ch (Ch1, Ch2...etc. Each estimated travel time td (td1, td2, etc.). The information of the above-mentioned power replenishing premises Ch may also include the number of people queued, the number of people to be reserved, and the like. The battery information herein may include power usage information, remaining battery information, battery aging information, etc., and the map information may include road type information, terrain information, and the like, and the traffic information may include real-time traffic information, traffic information, and the like. The real-time traffic information may include, for example, traffic accident information, road construction information, and the like.

Step S220 is to calculate an estimated charging waiting time tw for each of the at least one power replenishing location Ch based on the estimated estimated driving time td and based on the information of the power replenishing location Ch. If there is only one power replenishment location Ch (Ch1), the estimated charging waiting time tw(tw1) is calculated, and if there are two or more power replenishment locations Ch (Ch1, Ch2, ..., etc.), the predictions are calculated. Charging wait time tw (tw1, tw2, etc.). For example, the average waiting time of each charging location Ch plus the reserved time may be used as the estimated charging waiting time tw, or the sum of the average waiting time and the number of queues and the number of reserved persons, ie average waiting Time × (number of queues + number of reservations) is used as the estimated charging waiting time tw.

Step S230 is to determine the planned charging time tp of each of the at least one power replenishment location Ch of the electric vehicle C according to a specified time Tspec. The specified time Tspec here may be a specified charging time length tg or a time Tf at which charging is completed. When the specified time Tspec is specified for a long charging time Tg, the charging time tp of each plan is equal to the specified charging time length tg. When the specified time Tspec is the time Tf at which the charging is designated to be completed, the charging time tp of each plan is equal to the time Tf at which the charging is specified is subtracted from the current time Tn, and the estimation is estimated. Driving time td, estimated charging waiting time tw.

The specified time Tspec can be specified by the user, that is, the user can specify a specified charging time length tg, which is common to each of the at least one power replenishing location Ch, and is in the next step (described in the following steps). S300 and S400) calculating the time at which each of the electric power replenishing locations Ch is completed at the predetermined charging time length tg, and estimating the travelable range of the electric vehicle C at each of the electric power refilling locations Ch at this time (estimated post-charging travelable range R) . Here, the time at which the specified charging time length tg is completed is the current time Tn, the estimated traveling time td, the estimated charging waiting time tw, and the specified charging time length tg. The user can also designate a time Tf at which the charging is completed, and calculate the chargeable time (respectively limited to the above-described specified charging completion time Tf) in each of the power replenishing locations Ch in the next step (described in the following steps S300 and S400). Charging time tp), and estimating the travelable range of each power replenishment location Ch of the charging completion time Tf (estimated post-charge travelable range R).

The post-charge total power estimation step S300 performs the steps including the following calculations, as shown in FIG. 4, including the step S310 of calculating the estimated total charge at the start of charging, the step S320 of calculating the estimated increased power, and calculating the estimated total charge after charging. Step S330.

Step S310 is based on the current driving information and the above-mentioned respective power supplements The information of Ch is used to calculate the total amount of electric power when the electric vehicle C arrives at each of the above-mentioned power replenishing places Ch and starts charging as the estimated total electric quantity Bs at the start of charging. For example, in the above step S210, the estimated driving time td and the estimated charging waiting time tw can be obtained, and together with the current driving information, the total amount of electricity reaching the respective power replenishing locations Ch and starting charging can be calculated (pre Estimate the total charge Bs when starting charging.

In step S320, the estimated increase power amount ΔB of the electric vehicle C at each power replenishment location Ch is calculated according to each of the plan charging times tp determined in the above step S230. For example, according to the charging time tp of each plan, the battery information in the current driving information, such as the power status information, the remaining power information, the battery aging information, and the information of the power supplement location Ch, such as the charging facility specifications (such as charging) The capacity, the charging current per unit time, etc., can be used to calculate the amount of electricity added to each power replenishment location Ch (estimated increase in power ΔB).

In step S330, the total electric energy Bs at the time of each estimated charging start is added to each estimated electric energy increase amount ΔB as the estimated post-charging total electric energy Bf of the electric vehicle C in each of the electric power replenishing locations Ch.

The post-charge travelable range estimation step S400 is based on the current driving information and the estimated total post-charged electric energy Bf, and calculates the estimated post-charging travelable range R of the electric vehicle C centered on each of the electric-power refilling locations Ch. If the chargeable space Ch is two or more, for example, Ch1, Ch2, etc., the estimated charging range R (R1) of each charging location Ch (Ch1, Ch2, etc.) is calculated. , R2...etc.). It is a prior art to estimate a certain electric power driving range centering on the electric vehicle C. It is worth noting that the present invention is The power replenishment site Ch is the center, and the range of reversible is estimated. If the terrain and traffic factors are taken into consideration, the range obtained may not be a perfect circle.

In the driving range estimation method after charging of the electric vehicle, the estimated charging range R may be displayed on a display interface, for example, a display device for a vehicle. Further, the designated time Tspec, that is, the time Tf at which the charging is completed or the designated charging time tg may be displayed together on the display interface. Further, each estimated driving time td, each estimated charging waiting time tw, and each planning charging time tp may be displayed on the display interface, as shown in FIG. 6. The display interface may further have a built-in human-machine interface, and the user may perform relevant input directly on the display interface. In addition, the display interface and the human-machine interface may also be two separate components, which are connected by being connected to each other. The condition parameters, calculation results, and the like input by the machine operation interface are displayed on the display interface. The specified time Tspec may be set by the user via a button input mode, a touch input mode, or a touch drag mode (as shown in FIG. 7 , the user increases or decreases the time Tf at which the charging is performed by the drag action). Of course, the user can also directly drag the estimated driving range R after charging, and according to the estimated charging range R after the towing, the estimated total charging amount Bf after the towing is reversed. According to the estimated total charge Bf after charging, the estimated increased power ΔB after the towing can be obtained. The estimated charging time tp after the drag can be calculated by increasing the electric quantity ΔB according to the estimated after dragging. In other words, the charging time required for each power replenishment can be calculated according to the range that the user wants to reach, which is quite convenient for the user. Itinerary planning.

Referring to FIG. 7, the user can find information of at least one chargeable location Ch (eg, Ch1, Ch2, Ch3, Ch4) at the current time Tn, for example, 15:00 on Friday, and specify the time Tf at which charging is completed, For example, at 16:00, and then according to the above method of the present invention, it can be known that after the electric vehicle C arrives at the chargeable space Ch1 and waits and charges, after the designated time 16:00, the chargeable space Ch1 is centered. It is estimated that the driving range can be R1 after charging. Similarly, if the charging is performed after the Ch2 charging, the range R2 can be traveled after the estimated charging at 16:00, and in the rechargeable places Ch3 and Ch4. It is estimated that the driving range is R3 and R4 after charging. The current time Tn is 15:00, and the time Tf at which the charging is designated to be completed is only an example, and may be any time.

Further, the user can also specify the charging time length tg, for example, 30 minutes, according to the above method of the present invention, it is possible to know the time Tf1 after the electric vehicle C arrives at the chargeable space Ch1 and waits for a specified charging time length tg ( Since the estimated travel time td1 and the estimated charging waiting time tw1 are all measurable, the charging time length tg is known, so the time Tf1 at which the specified charging is completed is determined, because Tf1=Tn+td1+tw1+tg), At this time, the estimated charging range R1 centered on the rechargeable location Ch1; similarly, it is also known that the charging time Ch2 completes the specified charging time tg2, and the estimated driving range after charging R2. The above specified charging time length tg is 30 minutes, which is only an example, and may be any time.

In this way, it is convenient for the user to estimate the charge in each power supplement site. The electrical condition, and the driving range after charging, can make arrangements for the journey ahead of time.

After the specified time Tspec is set, the designated time may be changed. For example, if the specified time is Tspec-1, the designated time after the change is Tspec-2, and the time is changed according to the specified time Tspec-2 after the change. The charging time determination step S200, the post-charge total battery estimation step S300, and the post-charge travelable range estimation step S400 are performed to calculate the predicted pre-charged travelable range based on the changed designated time Tspec-2. R-2 (where -2 represents the calculation according to the specified time Tspec-2) and displays it on the display interface. It can also be displayed on the display interface together with the R-1 calculated by the specified time Tspec-1, or displayed in turn on the display interface, so that the user can understand the estimation status from the graphic. Of course, it is also possible to change the designated time multiple times, for example, Tspec-2, Tspec-3, ..., and display the changed estimated driving ranges R-2 and R-3 together or in turn on the display interface. As shown in FIG. 6, the current time Tn is 15:00, and the designated time Tspec-1 is the time Tf-1 16:00 that specifies the completion of charging, and the estimated traffic is displayed in the three power supplementary locations Ch1, Ch2, and Ch3. The time td1 to td3, the estimated charging waiting time tw1 to tw3, and the planned charging time tp1 to tp3 limited to the time Tf 16:00 at which the charging is completed are specified. When the user finds that the 5 minutes of the estimated charging waiting time tw1 of the power replenishing space Ch1 is the shortest, the power replenishing location Ch1 can be separately queried for the time Tf-2 16:30, the specified time Tf-3 17 The estimated charging range of :00 is R1-2, R1-3, and is displayed together with the estimated charging range R1-1 obtained by Tf-1 16:00.

Please refer to FIG. 8 , which shows an example of a method of estimating the driving range after charging of the electric vehicle. The input of the specified time Tspec until the decision charging time tp belongs to the range of the above-described step S200. If the specified time Tspec is the time Tf for specifying the completion of charging, it is case one. In the subsequent route of the case one, if the specified time Tspec is the specified charging time length tg, it is case 2, and the route of the second case is followed. In Fig. 8, the inventor of the present invention has considered that if the user inputs the time Tf at which the charging is completed, there may be an unreasonable situation, so after calculating the estimated traveling time td and the estimated charging waiting time tw Add a judgment to determine whether Tf is greater than the sum of Tn, td, and tw. Since Tf minus tn, td, and tw is the planned charging time tp, it is unreasonable if the charging time is negative or too small, and if it is unreasonable, it is returned to the step of inputting the specified time Tspec. In addition, if it is reasonable to preset the charging time, you can also bring this preset value into this judgment formula, that is, change the judgment formula to "Tf-Tn-td-tw> preset value?", and according to This preset value is used to determine whether the charging time is reasonable.

Please refer to FIG. 9 of the present invention, which illustrates a charging range estimation module after charging according to an embodiment of the invention.

The charged driving range estimation module 500 of the electric vehicle of the present invention includes a planning charging time determining unit 200, a post-charging total electric quantity estimating unit 300, and a post-charging driving range estimating unit 400.

a determining unit 200 for charging time, receiving at least one power supplement The information of the location Ch, the current time, the current driving information, and a specified time Tspec, and performing the above step S200, calculating the electric vehicle C to arrive at the at least one power replenishing location based on the information of the respective power replenishing premises Ch and the current driving information The estimated travel time td of each of Ch and the estimated charging waiting time tw of the respective power replenishing locations Ch are determined, and the planned charging time tp of each of the above-mentioned power replenishing locations Ch is determined.

The above-mentioned respective charging time tp is determined according to the specified time Tspec, for example, a specified time from the user, and may be a specified charging time length tg or a designated time Tf at which charging is completed, and the designated time Tspec is a specified charging time. The length tg is equal to the specified charging time tg. When the specified time Tspec is the time Tf at which the charging is designated to be completed, the respective charging time tp is equal to the time Tf at which the charging is completed is subtracted from the current time Tn, Estimated driving time td, estimated charging waiting time tw.

The charged total power estimating unit 300 receives the planned charging time tp, and performs the above-mentioned step S300 to calculate the estimated increased amount of electric energy ΔB of the electric vehicle C in each of the electric power refilling locations Ch according to each of the planned charging times tp, and Calculating the estimated total charge Bs when the electric vehicle C arrives at each of the above-mentioned power replenishing locations and is expected to start charging, and adds the total electric energy Bs at each estimated charging start to each estimated increase electric quantity ΔB to obtain an electric vehicle. C is the estimated total post-charged electric energy Bf in each of the above-mentioned power replenishing spaces.

The charged driving range estimating unit 400 receives the estimated total charged electric energy Bf, and performs the above-described step S400 to calculate the estimated charging travelable range R centered on the electric power replenishing positions of the electric vehicle C.

Please refer to FIG. 10 , which illustrates the driving assistance device of the electric vehicle of the driving range estimation module 500 after the charging of the electric vehicle described above, and the components around it.

The driving assistance device 1000 of the electric vehicle of the present invention includes a microprocessor unit MCU (micro-controller unit), and the microprocessor unit MCU includes: a vehicle dynamic analysis unit 600, an environmental change detection unit 700, and a power supply device selection unit 800. And the above-described charged driving range estimation module 500.

The vehicle dynamics analysis unit 600 and the environmental change detection unit 700 are general information collection modules for vehicles.

The vehicle dynamics analysis unit 600 senses the state of the electric vehicle C itself to obtain vehicle dynamic information, battery information, and the like of the electric vehicle, for example, by a vehicle dynamic information sensor such as a gyroscope or a three-axis acceleration gauge installed on the electric vehicle. The above information can be obtained with an electronic compass and a battery management system (hereinafter referred to as BMS).

The environmental change detecting unit 700 senses the state of the environment in which the electric vehicle C is located to obtain positioning information, map information, traffic information, and the like. For example, positioning information can be obtained by GPS (Global Positioning System) installed on an electric vehicle; map information can be obtained by communication with a geographic information system (GIS) database; by means of traffic information The database's communication provides instant and historical traffic information.

The power supply device selecting unit 800 here is a unit that performs the above-described step S100. The power supply device selecting unit 800 receives the above vehicle dynamic information, battery information, positioning information, map information, and traffic information, and accordingly The selection range SR (such as SRd of FIG. 5B and SRr of FIG. 5C) is set, or the selection range SR is set by the user (such as SRu of FIG. 5A above). The power supply device selection unit 800 captures information of at least one power supplement location Ch within the selected range R.

The driving assistance device 1000 for an electric vehicle of the present invention may further include a charging device status update interface 900 for receiving information of each of the power replenishing locations Ch, including, for example, location, operating time, number of charging seats, average waiting time, and having been The appointment time, etc., may further include the number of queues, the number of appointments, and the like. The charging device status update interface 900 is adapted to communicate with the charging service platform 1100 to obtain information of each of the power replenishing locations Ch. The charging service platform 1100 herein may be a cloud database that continuously or intermittently updates the status of each charging device. .

The driving assistance device 1000 for an electric vehicle of the present invention may further include a database communication interface 910, a sensor and BMS communication interface 920, and a display interface 930, and any one of these interfaces may be built in the driving assistance device 1000 of the electric vehicle. In the case of the driving assistance device 1000 of the electric vehicle, the existing interface on the electric vehicle C may be used. And the display interface 930 here, as described above, can further be built into the human-machine interface (not shown), directly on the display interface 930 for the user to perform related input, in addition, the display interface 930 and human-machine operation The interface (not shown) may also be two separate components, and the condition parameters, calculation results, and the like input by the human-machine interface are displayed on the display interface by being connected to each other.

The database communication interface 910 receives the positioning information, the map information, the traffic information, and the like, and outputs the information to the environmental change detecting unit 700. Sensor and BMS The communication interface 920 receives vehicle dynamic information, battery information, and the like, and outputs the same to the vehicle dynamic analysis unit 600. The display interface 930 combines the map information, the information of the power replenishment location Ch, and the estimated post-chargeable travelable range R calculated by the charged travelable range estimating unit 400.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

200‧‧‧Determining unit for charging time

300‧‧‧Total charge estimation unit after charging

400‧‧‧After charging range estimation unit

500‧‧‧ Driving range estimation module for electric vehicles after charging

600‧‧‧Vehicle Dynamics Analysis Unit

700‧‧‧Environmental Cause Detection Unit

800‧‧‧Power supply equipment selection unit

900‧‧‧Charging device status update interface

910‧‧‧Database Communication Interface

920‧‧‧Sensor and BMS communication interface

930‧‧‧Display interface

1000‧‧‧ Driving assistance for electric vehicles

1100‧‧‧Charging service platform

△B‧‧‧ Estimated increase in electricity

Bf‧‧‧ Estimated total charge after charging

Bs‧‧‧ Estimated total charge at the start of charging

C‧‧‧Electric vehicle

Ch(Ch1, Ch2...) ‧‧‧Electric Supplementary Space

MCU‧‧‧Microprocessor unit

R(R1, R2...)‧‧‧ Estimated driving range after charging

R-1‧‧‧ Estimated driving range after charging according to the specified time Tspec-1

SR (SRu, SRd, SRr) ‧‧‧Selection range

Td(td1, td2...)‧‧‧ Estimated travel time

Tf‧‧‧Specified time to complete charging

Tf-1‧‧‧Specified time to complete charging according to the specified time Tspec-1

Tg‧‧‧Specified charging time

Tn‧‧‧ current moment

Tp(tp1, tp2...)‧‧‧ plan charging time

Tspec (Tspec-1, Tspec-2...) ‧‧‧Specified time

Tw (tw1, tw2...) ‧ ‧ estimated charge waiting time

S100~S400, S110~S120, S210~S230, S310~S330‧‧‧ steps of the method for estimating the driving range after charging of the electric vehicle according to the present invention

FIG. 1 is a flow chart showing a method for estimating a driving range after charging of an electric vehicle according to an embodiment of the present invention.

FIG. 2 is a flow chart of step S100 of FIG. 1.

FIG. 3 is a flow chart of step S200 of FIG. 1.

FIG. 4 is a flow chart of step S300 of FIG. 1.

5A to FIG. 5C illustrate various situations in which the selection range is set. FIG. 5A is a setting range selected by a user, FIG. 5B is a selection range according to the position of the electric vehicle and vehicle dynamic information, and FIG. 5C is based on the position of the electric vehicle. The direction of travel and the dynamic information of the vehicle determine the range of selection.

6 is a diagram showing an example of a display interface of a method for estimating a driving range after charging of an electric vehicle according to an embodiment of the present invention.

7 is a diagram showing another example of a display interface of a method for estimating a driving range after charging of an electric vehicle according to an embodiment of the present invention.

8 is a diagram showing an example of a method for estimating a driving range after charging of an electric vehicle according to an embodiment of the present invention.

FIG. 9 is a block diagram of a driving range estimation module after charging according to an embodiment of the invention.

FIG. 10 is a block diagram showing the driving assistance device of the electric vehicle to which the driving range estimation module 500 after charging of the electric vehicle is applied, and its surrounding components.

S100~S400‧‧‧ steps of the method for estimating the driving range after charging of the electric vehicle according to the present invention

Claims (34)

A method for estimating a driving range after charging of an electric vehicle includes: selecting a step of replenishing a power, extracting information of at least one power replenishing location; determining a charging time, determining current driving information according to current time and the electric power supplement Information of the premises, calculating an estimated travel time for each of the at least one power replenishing space, and calculating an estimated charging waiting time for each of the at least one power replenishing space, and determining the electric vehicle according to a specified time a planned charging time of each of the at least one power replenishing space, the designated time being a specified charging time or a time at which the charging is designated to be completed, and when the specified charging time is the specified charging time, each of the planning charging times is equal to The specified charging time is long. When the specified time is the time when the designated charging is completed, each of the planned charging time is equal to the time when the designated charging is completed minus the current time, the estimated driving time, and the estimated charging waiting time. a total power estimation step after charging, calculating that the electric vehicle arrives in the at least one power supplemental premises Calculating the estimated total amount of power of each electric vehicle in each of the at least one power replenishing space according to the total charging amount of each of the at least one electric power replenishing place, and calculating the total electric quantity of each of the at least one electric power replenishing space. Estimating the total amount of electricity at the start of charging is added to each of the estimated increased amounts of electricity as the estimated total amount of charge of the electric vehicle in each of the at least one power replenishing space; and the step of estimating the range of driving after charging, according to Calculating the current driving information and the total amount of electricity after the estimated charging, calculating the electric vehicle to supplement the at least one electric power Each of the charging stations is centered for an estimated range of chargeable driving. The method for estimating a driving range after charging of the electric vehicle according to claim 1, further comprising displaying the estimated driving range after charging on a display interface. The method for estimating a driving range after charging of the electric vehicle according to the second aspect of the invention, wherein the specified time is displayed on the display interface. The method for estimating a driving range after charging of the electric vehicle according to claim 3, further comprising displaying the estimated driving time, each of the estimated charging waiting times, and each of the planned charging times. Display interface. The method for estimating the driving range after charging of the electric vehicle according to the third aspect of the invention, wherein the specified time is set by the user via a button input mode, a touch mode, or a touch drag mode. The method for estimating the driving range after charging of the electric vehicle according to the second aspect of the patent application, further comprising: setting a driving range after the estimated charging; and setting the driving range after the charging according to the setting, Calculating the estimated total charge after charging; calculating the estimated increased power according to the estimated total charge after charging; and calculating the set after the set increase of the estimated power Draw charging time. The method for estimating a driving range after charging according to the sixth aspect of the invention, wherein the driving range after the estimated charging is set by the user via a button input manner, a touch method, or a touch drag method set up. The method for estimating a driving range after charging of the electric vehicle according to claim 1, wherein the specified time is set by a user. The method for estimating a driving range after charging of the electric vehicle according to claim 1, further comprising: changing the designated time, and repeating the determining step of the charging time of the plan according to the designated time after the change, The post-charging total electric quantity estimating step and the post-charging driving range estimating step; and displaying the estimated post-charging travelable range obtained according to the designated time and the changed designated time on a display interface. The method for estimating the driving range after charging of the electric vehicle according to claim 1, wherein the information of the power replenishing location includes: location, operating time, number of charging seats, average waiting time, and reserved time. The method for estimating a driving range after charging of the electric vehicle according to claim 10, wherein the information of the power replenishing location further includes a queuing number and an appointment number. The method for estimating the driving range after charging of the electric vehicle according to claim 1, wherein when the designated time is the specified charging time, the time at which the charging time of each of the plans is completed is the current time, the pre- Estimating the travel time, the estimated charge waiting time, and the time when the specified charging time is long. The method for estimating a driving range after charging according to the electric vehicle of claim 1, wherein the current driving information includes: vehicle dynamics News, battery information, location information, map information, traffic information. The method for estimating a driving range after charging of the electric vehicle according to claim 13, wherein the vehicle dynamic information includes information of a vehicle speed, a triaxial acceleration, a triaxial angular velocity, and an electromagnetic direction of the electric vehicle, and the battery information includes The power information, the remaining battery information, and the battery aging information, the map information includes road type information and terrain information, and the traffic information includes real-time traffic information and traffic information. The method for estimating the driving range after charging of the electric vehicle according to claim 14, wherein the real-time road condition information includes traffic accident information and road construction information. The method for estimating a driving range after charging of the electric vehicle according to claim 13, wherein the current driving information further includes vehicle weight information. The method for estimating a driving range after charging according to the electric vehicle of claim 1, wherein the step of selecting the power replenishing location comprises: setting a selection range; and searching for the at least one power replenishing location within the selection range. The method for estimating a driving range after charging of the electric vehicle according to claim 17, wherein setting the selection range comprises designating the selection range by a user. The method for estimating a driving range after charging of the electric vehicle according to claim 17, wherein the method of setting the selected range includes determining the selected range according to a location of the electric vehicle and vehicle dynamic information. The method for estimating a driving range after charging according to the electric vehicle of claim 17, wherein the method of setting the selected range includes The location, direction of travel, and vehicle dynamics information of the electric vehicle determine the selection range. A charging range estimation module for an electric vehicle, comprising: a determining unit for calculating a charging time, receiving information of at least one power replenishing location, a current time, current driving information, and a specified time, and according to the at least one electric power Complementing the information of each of the premises and the current driving information, calculating an estimated driving time of the electric vehicle to arrive at each of the at least one power replenishing premises, and an estimate of each of the at least one power replenishing premises Charging waiting time, and determining a plan charging time of each of the at least one power replenishing space; a total post-charging power estimating unit, receiving each of the plan charging times, and calculating the electric vehicle according to each of the planned charging times Estimating the amount of electricity for each of the at least one power replenishing space, and calculating an estimated total amount of electricity when the electric vehicle arrives at the at least one power replenishing space and starting charging, and charging each of the estimated charging starts The amount of electricity is added to each of the estimated increased amounts of electricity to obtain an estimate of each of the at least one power replenishing space of the electric vehicle The total amount of electricity after the electric charge; and the pre-charged driving range estimating unit receives the estimated total charged electric quantity, and calculates that the electric vehicle can be driven after the estimated charging centered on each of the at least one electric replenishing space range. The driving range estimation module of the electric vehicle according to claim 21, wherein the charging time of each of the plans is determined according to the specified time from the user, and the designated time is the designated charging time. Long or specify the time to complete charging, when the specified time is the specified charging time If the length is longer than the specified charging time, when the specified time is the time when the specified charging is completed, each of the planning charging times is equal to the time when the specified charging is completed minus the current time, the pre- Estimated driving time, the estimated charging waiting time. A driving assistance device for an electric vehicle includes a micro processing unit, the micro processing unit has: a vehicle dynamic analysis unit that senses the state of the electric vehicle itself to obtain vehicle dynamic information and battery information of the electric vehicle; environmental change detection The unit senses the state of the environment in which the electric vehicle is located to obtain positioning information, map information, and traffic information; the power supply device selecting unit receives the vehicle dynamic information, the battery information, the positioning information, the map information, and the traffic information, The setting range is selected, and the information of at least one power replenishing location in the selected range is captured; and the driving range estimation module of the electric vehicle after charging according to claim 21 is applied. The driving assistance device for an electric vehicle according to claim 23, further comprising a charging device status update interface for receiving information of the at least one power replenishing location. The driving assistance device for an electric vehicle according to claim 24, wherein the charging device status update interface is adapted to communicate with the charging service platform to obtain information of the at least one power replenishing location. The driving assistance device for an electric vehicle according to claim 24, wherein the information of the power replenishing location includes location, operation time, The number of charging docks, the average waiting time, and the time that has been reserved. The driving assistance device for an electric vehicle according to claim 26, wherein the information of the power replenishing location further includes a queue number and an appointment number. The driving assistance device for an electric vehicle according to claim 23, further comprising a database communication interface, receiving the positioning information, the map information and the traffic information, and outputting the information to the environmental change detecting unit. The driving assistance device for an electric vehicle according to claim 23, further comprising a sensor and a battery management system communication interface, receiving the vehicle dynamic information, the battery information, and outputting to the vehicle dynamic analysis unit. The driving assistance device for an electric vehicle according to claim 23, further comprising a display interface, the display interface, the map information, the information of the power replenishment location, and each calculated by the charged driving range estimating unit The estimated charging range can be combined after the driving range. The driving assistance device for an electric vehicle according to claim 23, wherein the selection range is specified by a user. The driving assistance device for an electric vehicle according to claim 23, wherein the selection range is determined according to a location of the electric vehicle and vehicle dynamic information. The driving assistance device for an electric vehicle according to claim 23, wherein the selection range is determined according to a location, a traveling direction, and vehicle dynamic information of the electric vehicle. The driving assistance device for an electric vehicle according to claim 23, wherein the vehicle dynamic information sensor used includes a gyroscope, a three-axis acceleration gauge, and an electronic compass.